Waste oil extraction machine



FIG. 1 is a perspective view of the waste oil extraction machine showing the design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof; and,

FIG. 5 is a left side elevation view thereof. 

CLAIM The ornamental design for a waste oil extraction machine, as shown. 